Mercy gag

When a man’s penis is small and doesn’t evoke the gag reflex when a male or female is performing a blow job.

Courtney: his penis is so small it doesn’t cause me to gag.

Julie: you have to mercy gag sometimes to boost his ego.

pistol whip

When a man smacks his penis across a woman’s face

I pistol whipped Jessica so hard last night her dentures came flying out!